MP2236C

– 18V, 6A, FCCM SYNCHRONOUS STEP-DOWN CONVERTER

MP2236C Rev. 1.0

MonolithicPower.com

3

3/16/2022

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PIN FUNCTIONS

Pin #

Name

Description

1

AGND

Analog ground. Connect AGND to GND using a short and wide PCB trace.

2

IN

Supply voltage. The MP2236C operates from a 3V to 18V input rail. Use a ceramic

capacitor to decouple the input rail. Connect the IN pin using a wide PCB trace.

3

SW

Switch output. Connect the SW pin using a wide PCB trace.

4

GND

System power ground. The GND pin is the regulated output voltage (VOUT

)’s reference

ground, and requires special consideration in the PCB layout. Connect GND to the ground

plane with copper traces and vias.

5

BST

Bootstrap. Connect a 0.1µF capacitor between SW and BST to form a floating supply

across the high-side MOSFET (HS-FET) driver.

6

EN

Enable. Drive the EN pin high to enable the MP2236C. EN has a 2M

Ω pull-down resistor

to GND.

7

VCC

Internal bias supply. Decouple the VCC pin with a 1µF capacitor. The VCC capacitor

should be placed close to VCC and GND.

8

FB

Feedback. Connect the FB pin to the external resistor divider

’s tap from the output to

GND to set VOUT.

ABSOLUTE MAXIMUM RATINGS (1)

VIN.................................................. -0.3V to +20V

VSW ................................. -0.3V (-6.5V for <10ns)

…………………….to VIN + 0.7V (25V for <25ns)

VBST........................................................VSW + 4V

VEN................................................................. 20V

All other pins ................................... -0.3V to +4V

Continuous power dissipation (TA = 25°C) (2) (5)

TSOT23-8 .................................................1.89W

Junction temperature ................................ 150°C

Lead temperature...................................... 260°C

Storage temperature .................-65°C to +150°C

ESD Ratings

Human body model (HBM) .....................±2000V

Charged device model (CDM) .................. ±750V

Recommended Operating Conditions (3)

Supply voltage (VIN) ............................ 3V to 18V

Output voltage (VOUT)......................... 0.6V to 8V

……………………………………or VIN x DMAX (4)

Operating junction temp (TJ).....-40°C to +125°C

Thermal Resistance

θJA

θJC

TSOT23-8

EVL2236C-J-00A (5) ................66........23....°C/W

JESD51-7 (6) ...........................100 ......55....°C/W

Notes:

1) Exceeding these ratings may damage the device.

2) The maximum allowable power dissipation is a function of the

maximum junction temperature, TJ (MAX), the junction-to-

ambient

thermal

resistance,

θJA,

and

the

ambient

temperature, TA. The maximum allowable continuous power

dissipation at any ambient temperature is calculated by PD

(MAX) = (TJ (MAX) - TA) /

θJA. Exceeding the maximum

allowable power dissipation can generate an excessive die

temperature, which may cause the regulator to go into

thermal

shutdown.

Internal

thermal

shutdown

circuitry

protects the device from permanent damage.

3) The device is not guaranteed to function outside of its

operating conditions.

4) For more information about DMAX, see the Low-Dropout (LDO)

Operation section on page 12.

5) Measured

on

the

EVL2236C-J-00A,

a

4-layer

PCB

(63.5mmx63.5mm).

6)

The value of θJA given in this table is only valid for comparison

with other packages and cannot be used for design purposes.

These values were calculated in accordance with JESD51-7,

and simulated on a specified JEDEC board. They do not

represent the performance obtained in an actual application .